EP3514462B1 - Climatiseur - Google Patents

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Publication number
EP3514462B1
EP3514462B1 EP16916193.2A EP16916193A EP3514462B1 EP 3514462 B1 EP3514462 B1 EP 3514462B1 EP 16916193 A EP16916193 A EP 16916193A EP 3514462 B1 EP3514462 B1 EP 3514462B1
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EP
European Patent Office
Prior art keywords
port
flow path
refrigerant
switching device
path switching
Prior art date
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Active
Application number
EP16916193.2A
Other languages
German (de)
English (en)
Other versions
EP3514462A4 (fr
EP3514462A1 (fr
Inventor
Ryota AKAIWA
Shinya Higashiiue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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Publication of EP3514462A4 publication Critical patent/EP3514462A4/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • F25B2313/02332—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during defrosting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • F25B2313/02334—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
    • F25B2313/02533—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements during heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • F25B2313/0254—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in series arrangements
    • F25B2313/02541—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in series arrangements during cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • F25B2313/0254—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in series arrangements
    • F25B2313/02542—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in series arrangements during defrosting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/0272—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using bridge circuits of one-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/0276—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using six-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves

Definitions

  • An object of the present invention is to provide an air conditioner that can perform a heating operation and a cooling operation with enhanced heat exchange performance and can also perform a heating continuous operation, while preventing increases in manufacturing cost and packaging volume.
  • Expansion valve 4a as the above-described on-off valve is connected between three-way tube 5 and outdoor heat exchanger 3a (first refrigerant flow path) via pipes 204 to 206. From a different viewpoint, on pipes 204 to 206, expansion valve 4a is placed between connection point B" connected to fourth port IV, and three-way tube 5 as a branch point.
  • the above-described air conditioner may be configured with no expansion valves 6a to 6d.
  • connection target of second port II is switchable between first port I and third port III.
  • the connection target of fifth port V is switchable among first port I, third port III, and fourth port IV.
  • the connection target of sixth port VI is switchable between first port I and third port III.
  • the gas refrigerant compressed at compressor 1 which is high-temperature and high-pressure, flows in first port I of flow path switching device 12.
  • flow path switching device 12 a flow path that connects first port I to second port II is formed.
  • the gas refrigerant that has passed through second port II of flow path switching device 12 reaches point D on pipe 201.
  • the gas refrigerant then branches and passes through a plurality of indoor heat exchangers 7a to 7d. At this time, each of indoor heat exchangers 7a to 7d serves as a condenser.
  • the refrigerant passes through outdoor heat exchangers 3a, 3b in series when flowing from point A to point B'.
  • the liquid refrigerant that has passed through point B' on pipe 206 reaches point C on pipe 203 via refrigerant distributor 10b, expansion valve 4b, and three-way tube 5.
  • the liquid refrigerant that has passed through point C branches and passes through a plurality of expansion valves 6a to 6d, thereby becoming a two-phase refrigerant state in which low-temperature, low-pressure gas refrigerant and liquid refrigerant are mixed.
  • the refrigerant in the two-phase refrigerant state passes through a plurality of indoor heat exchangers 7a to 7d.
  • refrigerant flow path switching circuit 101 allows for an efficient heating operation, cooling operation, and heating continuous operation. That is, an outdoor heat exchanger in heat pump equipment, such as an air conditioner according to the present embodiment, includes a plurality of refrigerant flow paths (outdoor heat exchangers 3a, 3b). With respect to the plurality of refrigerant flow paths, the outdoor heat exchanger allows refrigerant to flow in parallel during a heating operation, and allows refrigerant to flow in series during a cooling operation. Further, during a heating continuous operation (heating-defrosting simultaneous operation), the above-described outdoor heat exchanger allows refrigerant to flow so that a part of the outdoor heat exchanger (e.g.
  • outdoor heat exchanger 3a as one refrigerant flow path
  • outdoor heat exchanger 3b as another refrigerant flow path
  • Such a heating operation, cooling operation, and heating continuous operation can be provided by a simple circuit.
  • Branch flow path 108 is connected to flow path 105 and flow path 106 via changeover valve 103a.
  • Branch flow path 109 is connected to all of flow paths 105, 106, 107 via changeover valve 103b.
  • Branch flow path 110 is connected to flow paths 105, 106 via changeover valve 103c.
  • Pipe 111 is connected to flow path 107.
  • Pipe 112 is connected to flow path 105.
  • Pipe 113 is connected to flow path 106.
  • Changeover valve 103a is a rod-shaped body and has an opening 104a to serve as a refrigerant flow path.
  • Fig. 20 shows a refrigerant flow in flow path switching device 12 during a heating operation in the air conditioner.
  • Refrigerant from first port I passes through four-way valve 31 and flows to second port II.
  • Refrigerant from fifth port V and refrigerant from sixth port VI pass through three-way valves 33, 32, respectively, and join together at point P.
  • the joined refrigerant passes through four-way valve 31 and flows to third port III.
  • a flow path from fourth port IV is blocked by three-way valve 34 and thus does not cause a flow. In this way, the heating operation is performed in the air conditioner in the present embodiment.
  • the configuration of flow path switching device 12 shown in Fig. 24 may be any of the above described configurations of embodiments 1 to 3.
  • the second heat exchanger includes additional outdoor heat exchanger 3a' as a third refrigerant flow path, and additional outdoor heat exchanger 3b' as a fourth refrigerant flow path.
  • the third refrigerant flow path (additional outdoor heat exchanger 3a') and the fourth refrigerant flow path (additional outdoor heat exchanger 3b') via connected in parallel to the first heat exchanger (indoor heat exchangers 7a to 7d) and second three-way tube 5 as another branch point.
  • Flow path switching device 12 includes the seventh to ninth ports (additional fourth to sixth ports IV to VI).

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Claims (11)

  1. Climatiseur comprend un circuit de réfrigérant à travers lequel circule le réfrigérant, le circuit de réfrigérant comprenant un compresseur (1), un premier échangeur de chaleur (7a à 7d), un détendeur (6a à 6d), un second échangeur de chaleur (3a, 3b), un premier point de ramification, et un dispositif de commutation de passage d'écoulement (12),
    le second échangeur de chaleur (3a, 3b) comprenant un premier passage d'écoulement de réfrigérant (3a) et un deuxième passage d'écoulement de réfrigérant (3b), chacun des premier et deuxième passages d'écoulement de réfrigérant ayant un côté et un autre côté, le premier échangeur de chaleur ayant un passage d'écoulement de réfrigérant ayant un côté et un autre côté,
    le compresseur (1) comprenant une partie d'admission et une partie d'évacuation,
    le détendeur étant agencé entre un côté du passage d'écoulement de réfrigérant du premier échangeur de chaleur et le premier point de ramification, le premier point de ramification étant en outre connecté à un côté du premier passage d'écoulement de réfrigérant par l'intermédiaire d'un premier tuyau et à un côté du deuxième passage d'écoulement de réfrigérant par l'intermédiaire d'un second tuyau, dans lequel le premier passage d'écoulement de réfrigérant (3a) et le deuxième passage d'écoulement de réfrigérant (3b) sont connectés en parallèle au premier point de ramification,
    le dispositif de commutation de passage d'écoulement (12) comprenant
    un premier orifice connecté à la partie d'évacuation du compresseur (1),
    un deuxième orifice connecté à l'autre côté du passage de réfrigérant du premier échangeur de chaleur (7a à 7d),
    un troisième orifice connecté à la partie d'admission du compresseur (1),
    un quatrième orifice connecté au premier tuyau qui connecte le point de ramification à un côté du premier passage d'écoulement de réfrigérant (3a),
    un cinquième orifice connecté à l'autre côté du deuxième passage d'écoulement de réfrigérant (3b), et
    un sixième orifice connecté à l'autre côté du premier passage d'écoulement de réfrigérant (3a),
    dans le dispositif de commutation de passage d'écoulement (12) une cible de connexion du second orifice étant commutable entre le premier orifice et le troisième orifice,
    une cible de connexion du cinquième orifice étant commutable entre le premier orifice, le troisième orifice, et le quatrième orifice,
    une cible de connexion du sixième orifice étant commutable entre le premier orifice et le troisième orifice.
  2. Climatiseur selon la revendication 1, dans lequel le détendeur (4a) est placé entre un point de connexion et le point de ramification sur le tuyau, le point de connexion étant connecté au quatrième orifice.
  3. Climatiseur selon la revendication 2, dans lequel le climatiseur peut être utilisé dans un premier état de fonctionnement dans lequel
    le détendeur (4a) se trouve dans un état ouvert, et
    (12), dans le dispositif de commutation de passage d'écoulement
    le premier orifice est connecté au deuxième orifice, et
    le cinquième orifice et le sixième orifice sont connectés au troisième orifice.
  4. Climatiseur selon l'une quelconque des revendications 1 à 3, dans lequel le climatiseur peut être utilisé dans un deuxième état de fonctionnement dans lequel
    le détendeur (4a) se trouve dans un état fermé, et
    dans le dispositif de commutation de passage d'écoulement (12)
    le premier orifice est connecté au sixième orifice,
    le deuxième orifice est connecté au troisième orifice, et
    le quatrième orifice est connecté au cinquième orifice.
  5. Climatiseur selon l'une quelconque des revendications 1 à 4, dans lequel le climatiseur peut être utilisé dans un troisième état de fonctionnement dans lequel
    le détendeur (4a) se trouve dans un état ouvert, et
    (12), dans le dispositif de commutation de passage d'écoulement
    le premier orifice est connecté au deuxième orifice et au sixième orifice, et
    le troisième orifice est connecté au cinquième orifice.
  6. Climatiseur selon l'une quelconque des revendications 1 à 5, dans lequel le climatiseur peut être utilisé dans un quatrième état de fonctionnement dans lequel
    le détendeur (4a) se trouve dans un état ouvert, et
    (12), dans le dispositif de commutation de passage d'écoulement
    le premier orifice est connecté au deuxième orifice et au cinquième orifice, et
    le troisième orifice est connecté au sixième orifice.
  7. Climatiseur selon l'une quelconque des revendications 1 à 6, dans lequel le dispositif de commutation de passage d'écoulement (12) comprend trois vannes ouvrables et fermables (21 à 27) ou plus.
  8. Climatiseur selon l'une quelconque des revendications 1 à 6, dans lequel le dispositif de commutation de passage d'écoulement (12) comprend au moins une vanne à quatre voies (31) ou plus et trois vannes à trois voies (32 à 34) ou plus.
  9. Climatiseur selon l'une quelconque des revendications 1 à 6, dans lequel le dispositif de commutation de passage d'écoulement (12) comprend
    un boîtier (120) ayant les premier au sixième orifices,
    une première vanne de commutation (103a) configurée pour commuter une cible de connexion du deuxième orifice entre le premier orifice et le troisième orifice,
    une deuxième vanne de commutation (103b) configurée pour commuter une cible de connexion du cinquième orifice entre le premier orifice, le troisième orifice, et le quatrième orifice, et
    une troisième vanne de commutation (103c) configurée pour commuter une cible de connexion du sixième orifice entre le premier orifice et le troisième orifice.
  10. Climatiseur selon l'une quelconque des revendications 1 à 9, comprenant en outre :
    un premier ventilateur (8) conçu pour envoyer de l'air au premier passage d'écoulement de réfrigérant (3a) ; et
    un second ventilateur (8) conçu pour envoyer de l'air au deuxième passage d'écoulement de réfrigérant (3b).
  11. Climatiseur selon l'une quelconque des revendications 1 à 10, comprenant un second point de ramification et dans lequel
    le second échangeur de la chaleur comprend un troisième passage d'écoulement de réfrigérant (3a') et un quatrième passage d'écoulement de réfrigérant (3b'), chacun des troisième et quatrième passages d'écoulement ayant un côté et un autre côté, le second point de ramification étant connecté à un côté du troisième passage d'écoulement de réfrigérant par l'intermédiaire d'un troisième tuyau et à un côté du quatrième passage d'écoulement de réfrigérant par l'intermédiaire d'un quatrième tuyau, dans lequel,
    le troisième passage d'écoulement de réfrigérant (3a') et le quatrième passage d'écoulement de réfrigérant (3b') sont connectés en parallèle au second point de ramification,
    le dispositif de commutation de passage d'écoulement (12) comprend un septième orifice connecté au troisième tuyau qui connecte le second point de ramification à un côté du troisième passage d'écoulement de réfrigérant (3a'),
    un huitième orifice connecté à l'autre côté du quatrième passage d'écoulement de réfrigérant, et
    un neuvième orifice connecté à l'autre côté du troisième passage d'écoulement de réfrigérant (3a'), et
    dans le dispositif de commutation de passage d'écoulement (12) , le quatrième orifice et le septième orifice connectés l'un à l'autre constituent un premier groupe d'orifices,
    le cinquième orifice et le huitième orifice connectés l'un à l'autre constituent un deuxième groupe d'orifices,
    le sixième orifice et le neuvième orifice connectés l'un à l'autre constituent un troisième groupe d'orifices,
    une cible de connexion du deuxième groupe d'orifices est commutable entre le premier orifice, le troisième orifice, et le premier groupe d'orifices, et
    une cible de connexion du troisième groupe d'orifices est commutable entre le premier orifice et le troisième orifice.
EP16916193.2A 2016-09-13 2016-09-13 Climatiseur Active EP3514462B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/076968 WO2018051408A1 (fr) 2016-09-13 2016-09-13 Climatiseur

Publications (3)

Publication Number Publication Date
EP3514462A1 EP3514462A1 (fr) 2019-07-24
EP3514462A4 EP3514462A4 (fr) 2020-01-15
EP3514462B1 true EP3514462B1 (fr) 2021-05-19

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Country Status (4)

Country Link
US (1) US10830502B2 (fr)
EP (1) EP3514462B1 (fr)
JP (1) JP6768073B2 (fr)
WO (1) WO2018051408A1 (fr)

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ES2936235T3 (es) 2018-05-10 2023-03-15 Mitsubishi Electric Corp Dispositivo de ciclo de refrigeración
EP3792570A4 (fr) * 2018-05-11 2021-04-21 Mitsubishi Electric Corporation Système à cycle de réfrigération
CN109442633A (zh) * 2018-10-31 2019-03-08 青岛海信日立空调系统有限公司 空调循环系统及其控制方法
KR20200067008A (ko) * 2018-12-03 2020-06-11 현대자동차주식회사 6웨이 밸브 및 이를 포함한 차량용 열관리시스템
US11933523B2 (en) * 2019-05-24 2024-03-19 Tyco Fire & Security Gmbh Reversible valve for HVAC system
CN111928424A (zh) * 2020-06-30 2020-11-13 青岛海尔空调电子有限公司 多联机空调系统
CN113970194B (zh) * 2020-07-24 2023-01-20 约克广州空调冷冻设备有限公司 热泵系统
US11932078B2 (en) * 2021-03-31 2024-03-19 Tesla, Inc. Electric vehicle heat pump using enhanced valve unit
JP7260810B1 (ja) 2021-10-07 2023-04-19 ダイキン工業株式会社 熱源ユニット、および空気調和装置
JP7185158B1 (ja) * 2021-10-07 2022-12-07 ダイキン工業株式会社 熱源ユニット、および空気調和装置
JPWO2023218585A1 (fr) * 2022-05-12 2023-11-16

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JP6768073B2 (ja) 2020-10-14
WO2018051408A1 (fr) 2018-03-22
US10830502B2 (en) 2020-11-10
EP3514462A4 (fr) 2020-01-15
EP3514462A1 (fr) 2019-07-24
US20190203981A1 (en) 2019-07-04

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